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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A369477 Expansion of (1/x) * Series_Reversion( x / ((1+x) * (1+x+x^2)^2) ).

Table of values

n a(n)
0 1
1 3
2 14
3 77
4 464
5 2964
6 19717
7 135131
8 947549
9 6765642
10 49022225
11 359545750
12 2664127354
13 19913283809
14 149968276974
15 1136856855549
16 8668000962927
17 66428474900907
18 511414514214628
19 3953420853213504
20 30674783555852576
21 238808419235022293
22 1864869207177530320

List of values

[1, 3, 14, 77, 464, 2964, 19717, 135131, 947549, 6765642, 49022225, 359545750, 2664127354, 19913283809, 149968276974, 1136856855549, 8668000962927, 66428474900907, 511414514214628, 3953420853213504, 30674783555852576, 238808419235022293, 1864869207177530320]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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